A = 180
B = 150
C = float(A) + float(B)
print('数字求和为 %d' % C)

import math

print(math.sin(3))
print(math.hypot(3.4))
print(math.sqrt(6))

b1 = True
b2 = False
print(b1.b2)
print(type(b1))
print(type(b2))

print(bin(60))
print(oct(60))
print(hex(60))
print(int(6.8))
print(float(6.8))
print(str(6.8))


a = 1
b = 2
print(a + b)
print(a - b)
print(a * b)
print(a / b)
print(a // b)
print(a % b)
print(a ** b)


a = 8
a += 2
print(a)
a *= 2
a /= 2
print(a)

str1 = 'hello'
print('h' in str1)
print('a' in str1)
print('c'not in str1)
print('o' not in str1)